CN212323661U

CN212323661U - Insulating cross brace

Info

Publication number: CN212323661U
Application number: CN202021398513.XU
Authority: CN
Inventors: 李海洋; 徐剑; 宋晔宏; 胡丽娜; 倪文光
Original assignee: ZHEJIANG WANGLONG RAIL TRANSIT FACILITIES CO Ltd
Current assignee: ZHEJIANG WANGLONG RAIL TRANSIT FACILITIES CO Ltd
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2021-01-08
Anticipated expiration: 2030-07-15

Abstract

The utility model belongs to the technical field of the high-voltage electromagnetism, concretely relates to insulating stull. The insulating cross brace solves the problem that the existing insulating cross brace cannot meet the length requirements under different use conditions. The insulating cross brace comprises a steel pipe and two mandrels, and is characterized in that the two mandrels are respectively arranged at two ends of the steel pipe in a telescopic mode, one section of the mandrel is located in the steel pipe, the other section of the mandrel is located outside the steel pipe, a telescopic adjusting structure which enables the mandrel to be axially stretched and fixed along the steel pipe is arranged between one section of the mandrel located in the steel pipe and the steel pipe, and an insulator is connected to one end, located outside the steel pipe, of the mandrel. The utility model discloses a length requirement under the different service conditions of reason stull adaptation.

Description

Insulating cross brace

Technical Field

The utility model belongs to the technical field of the high-voltage electromagnetism, concretely relates to insulating stull.

Background

With the increasing population of urban living in China, the inconvenience of traffic congestion on life has become the first major of the people's county. The solution to urban traffic congestion, the development of urban light rail subways, has become the highest work agenda of local governments. Urban light rail subways and tramcars are adopted in the first-line cities, the second-line cities and coastal cities, and the urban traffic environment is gradually improved.

In these transportation facilities, often can use insulating stull and the contact net contact that provides electric power, different service conditions also require differently to the length of insulating stull, and current insulating stull all is the fixed length, can only make alone to the requirement of different insulating stull length, leads to the insulating stull of the more different length of needs accumulation to deal with the demand.

Disclosure of Invention

The utility model aims at having the above-mentioned problem to current technique, provided an insulating stull, the utility model aims to solve the technical problem that: how to realize the length requirement of the insulating cross brace under different use conditions.

The purpose of the utility model can be realized by the following technical proposal:

the utility model provides an insulating stull, includes steel pipe and two dabbers, its characterized in that, two dabbers are flexible respectively and set up in the both ends of steel pipe, one section of dabber is located the steel pipe, and another section is located the steel pipe outside, be equipped with the flexible regulation structure that makes the dabber stretch out and draw back and fix along the steel pipe axial between one section that the dabber is located the steel pipe and the steel pipe, the dabber is located one of the steel pipe outside and serves and be connected with the insulator.

Two dabbers get into in the steel pipe from the both ends of steel pipe respectively, one section of dabber is located the steel pipe, and another section is located the steel pipe outside, and the dabber is located one of steel pipe outside and serves and be connected with the insulator, and the dabber is located and is equipped with the flexible regulation structure that makes the dabber flexible and fix along the axial between one section and the steel pipe in the steel pipe, makes the dabber carry out axial displacement for the steel pipe through flexible regulation structure and adjusts the overall length of insulating stull, makes the different service conditions of insulating stull adaptation.

In the insulating transverse brace, a section of the mandrel, which is located outside the steel pipe, is provided with a limiting step surface facing the end surface of the steel pipe, and the limiting step surface can abut against the end surface of the steel pipe. The arrangement of the limiting step surface can prevent the mandrel from excessively entering the steel pipe.

In the insulating cross brace, the telescopic adjusting structure comprises a core shaft and a plurality of first positioning holes which penetrate through the outer side wall of the core shaft, the plurality of first positioning holes are arranged at intervals along the axial direction of the core shaft, a steel pipe is provided with at least two second positioning holes which are communicated with the first positioning holes, the second positioning holes penetrate through the outer side wall of the steel pipe, and the telescopic adjusting structure further comprises positioning pins which penetrate through the first positioning holes and the second positioning holes. When the length of the insulating cross brace needs to be adjusted, the mandrel needs to move axially relative to the steel pipe, a plurality of positioning holes I which are arranged at intervals along the axial direction of the mandrel also move along with the mandrel, the positioning holes II can be aligned and communicated with the positioning holes I at different positions, after the insulating cross brace is adjusted to a preset length, the corresponding positioning holes I are aligned and communicated with the positioning holes II, the positioning pins penetrate through the positioning holes I and the positioning holes II, and the relative positions of the mandrel and the steel pipe can be fixed through the positioning pins.

In the insulating cross brace, the steel pipe is provided with two second positioning holes, the two second positioning holes are respectively positioned at two ends of the steel pipe, and each second positioning hole can be aligned and communicated with the first positioning hole closest to the limiting step surface on the mandrel corresponding to one end where the second positioning hole is positioned. The two mandrels are both arranged at two ends of the steel pipe in a telescopic mode, two positioning holes II are correspondingly formed in the two ends of the steel pipe respectively, and when the limiting step surfaces of the mandrels abut against the end face of the steel pipe, the positioning hole I, closest to the limiting step surface, of the mandrel is communicated with the positioning hole II in an aligned mode; when the mandrel extends out of the steel pipe to the maximum, the first positioning hole which is farthest away from the limiting step surface on the mandrel is communicated with the second positioning hole in an aligned mode, and therefore the second positioning hole is formed in the end portion of the steel pipe, and the first positioning hole and the second positioning hole can be communicated in an aligned mode when the mandrel stretches in the axial direction.

In foretell insulating stull, the one end of locating pin has the portion of leaning on with the support of steel pipe lateral wall counterbalance, and the spliced eye has been seted up to the other end, and it has the split pin that prevents the locating pin and deviate from locating hole two to peg graft on the spliced eye. After inserting the locating pin in locating hole one and the locating hole two, the portion of support of locating pin supports the lateral wall contact with the steel pipe, inserts the split pin in the spliced eye and can prevent that the locating pin from deviating from locating hole one and locating hole two, makes the relative position between steel pipe and the dabber can fix to when insulating stull length of needs adjustment, take out the split pin from the spliced eye, take out the locating pin from locating hole one and locating hole two again, can carry out axial displacement to the dabber, the length of adjustment insulating stull.

In the insulating transverse strut, one end of the positioning pin is provided with a supporting part which is abutted against the outer side wall of the steel pipe, and the other end of the positioning pin is connected with a nut which prevents the positioning pin from being separated from the second positioning hole in a threaded manner. After the positioning pin is inserted into the first positioning hole and the second positioning hole, the abutting part of the positioning pin abuts against the outer side wall of the steel pipe to be in contact with the outer side wall of the steel pipe, the nut is screwed at the other end of the positioning pin, the nut is matched with the abutting part to prevent the positioning pin from being separated from the second positioning hole, and the relative position between the steel pipe and the core shaft can be fixed.

In the above-mentioned insulating stull, the telescopic adjusting structure includes an internal thread provided on the inner wall of the steel pipe and an external thread provided on the outer wall of the mandrel, and the mandrel is screwed with the steel pipe. The length of the insulating cross brace is adjusted by screwing the mandrel and the steel pipe through the internal thread arranged on the inner wall of the steel pipe and the external thread arranged on the outer wall of the mandrel.

Compared with the prior art, the insulating cross brace has the following advantages:

1. the mandrel moves axially relative to the steel pipe through the telescopic adjusting structure, so that the length of the insulating cross brace can be adjusted.

2. The length of insulating stull can be adjusted, makes the length requirement under the different service conditions of insulating stull adaptation, avoids accumulating the insulating stull of more different length to deal with the demand.

Drawings

Fig. 1 is a first cross-sectional view of an insulating wale.

Fig. 2 is a second cross-sectional view of the insulating wale.

Fig. 3 is a schematic structural diagram of a cotter pin used in the first embodiment.

Fig. 4 is a schematic structural view of the second embodiment using a nut.

In the figure, 1, steel pipe; 1a, a second positioning hole; 2. a mandrel; 2a, a limiting step surface; 2b, positioning the first hole; 3. an insulator; 4. positioning pins; 4a, inserting holes; 4b, an abutting part; 6. a cotter pin; 7. and a nut.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

Example one

As shown in fig. 1 to 3, the insulating cross brace includes a steel pipe 1 and two mandrels 2, and is characterized in that the two mandrels 2 are respectively telescopically arranged at two ends of the steel pipe 1, one section of the mandrel 2 is located in the steel pipe 1, the other section of the mandrel 2 is located outside the steel pipe 1, a limiting step surface 2a facing the end surface of the steel pipe 1 is arranged on one section of the mandrel 2 located outside the steel pipe 1, the limiting step surface 2a can abut against the end surface of the steel pipe 1, the limiting step surface 2a can prevent the mandrel 2 from excessively entering the steel pipe 1, and one end of the mandrel 2 located outside the steel pipe 1 is further connected with an insulator 3.

As shown in fig. 1 to 3, a telescopic adjusting structure for fixing the mandrel 2 along the axial direction of the steel tube 1 is arranged between a section of the mandrel 2 in the steel tube 1 and the steel tube 1, the telescopic adjusting structure comprises four positioning holes I2 b penetrating through the outer side wall of the mandrel 2 and formed in each mandrel 2, the four positioning holes I2 b are arranged at intervals along the axial direction of the mandrel 2, two positioning holes II 1a capable of being communicated with the positioning holes I2 b are formed in the steel pipe 1, the positioning holes II 1a penetrate through the outer side wall of the steel pipe 1, the two positioning holes II 1a are respectively located at two ends of the steel pipe 1, the two positioning holes II 1a respectively correspond to the mandrels 2 which are arranged in the steel pipe 1 in a telescopic mode, each positioning hole II 1a can be aligned and communicated with a positioning hole I2 b which is closest to the limiting step surface 2a on the mandrel 2 corresponding to one end where the positioning hole II 1a is located, and the telescopic adjusting structure further comprises a positioning pin. When the limiting step surface 2a of the mandrel 2 abuts against the end surface of the steel pipe 1, a first positioning hole 2b, which is closest to the limiting step surface 2a, on the mandrel 2 is aligned and communicated with a second positioning hole 1 a; when the mandrel 2 extends out of the steel pipe 1 to the maximum value, the first positioning hole 2b which is farthest from the limiting step surface 2a on the mandrel 2 is aligned and communicated with the second positioning hole 1a, therefore, the second positioning hole 1a is arranged at the end part of the steel pipe 1, the first positioning hole 2b and the second positioning hole 1a can be aligned and communicated when the mandrel 2 extends and retracts in the axial direction, the positioning pin 4 fixes the relative position of the mandrel 2 and the steel pipe 1, the mandrel 2 is prevented from moving axially relative to the steel pipe 1, and the length of the adjusted insulating cross brace is kept at a stable value.

As shown in fig. 2 and 3, one end of the positioning pin 4 is provided with a supporting part 4b which is abutted against the outer side wall of the steel pipe 1, the other end of the positioning pin is provided with an inserting hole 4a, and the inserting hole 4a is inserted with a split pin 6 which prevents the positioning pin 4 from being separated from the positioning hole two 1 a. After the positioning pin 4 is inserted into the first positioning hole 2b and the second positioning hole 1a, the abutting part 4b of the positioning pin 4 abuts against the outer side wall of the steel pipe 1 to be in contact with the outer side wall of the steel pipe 1, the cotter pin 6 is inserted into the inserting hole 4a to prevent the positioning pin 4 from being separated from the first positioning hole 2b and the second positioning hole 1a, so that the relative position between the steel pipe 1 and the mandrel 2 can be fixed, the cotter pin 6 is taken out of the inserting hole 4a when the length of the insulating cross brace needs to be adjusted, the positioning pin 4 is taken out of the first positioning hole 2b and the second positioning hole 1a, the mandrel 2 can be axially moved, and the length of.

As shown in fig. 1 to 3, a telescopic adjusting structure for axially extending and fixing the mandrel 2 is provided between one section of the mandrel 2 located in the steel pipe 1 and the steel pipe 1, and the mandrel 2 can axially move relative to the steel pipe 1 through the telescopic adjusting structure to adjust the overall length of the insulating wale, so that the insulating wale can adapt to different use conditions.

Example two

The present embodiment is substantially the same as the above-mentioned embodiments, and has a difference in that, as shown in fig. 4, in the present embodiment, one end of the positioning pin 4 has an abutting portion 4b abutting against the outer side wall of the steel pipe 1, the other end is screwed with a nut 7 preventing the positioning pin 4 from coming out of the positioning hole two 1a, the abutting portion 4b of the positioning pin 4 abuts against the outer side wall of the steel pipe 1, the nut 7 is screwed on the other end of the positioning pin 4, and the nut 7 and the abutting portion 4b are matched to prevent the positioning pin 4 from coming out of the positioning hole two 1a, so that the relative position between the steel pipe 1 and.

In this embodiment, each mandrel 2 is provided with six positioning holes one 2b, the steel pipe 1 is provided with four positioning holes two 1a, each two positioning holes two 1a are in a group and are respectively located at two ends of the steel pipe 1, the distance between every two adjacent positioning holes one 2b is 50mm, and the distance between the positioning holes two 1a in each group is the same as the distance between the two adjacent positioning holes one 2 b. The number of the positioning holes I2 b on the mandrel 2 and the adjacent intervals can be increased according to requirements, and the length selection of adjustment is improved.

EXAMPLE III

In this embodiment, flexible regulation structure includes the internal thread that sets up on the steel pipe 1 inner wall and the external screw thread that sets up on 2 outer walls of dabber, and dabber 2 and steel pipe 1 spiro union make the length side length of insulating stull or shorten through rotating dabber 2.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides an insulating stull, includes steel pipe (1) and two dabber (2), its characterized in that, two dabber (2) stretch out and draw back respectively and set up in the both ends of steel pipe (1), dabber (2) one section is located steel pipe (1), and another section is located outside steel pipe (1), dabber (2) are located and are equipped with between one section in steel pipe (1) and make dabber (2) along steel pipe (1) axial flexible and fixed flexible regulation structure, and dabber (2) are located one of steel pipe (1) and serve and be connected with insulator (3).

2. The insulating wale according to claim 1, wherein a section of the mandrel (2) located outside the steel pipe (1) is provided with a limiting step surface (2a) facing the end surface of the steel pipe (1), and the limiting step surface (2a) can abut against the end surface of the steel pipe (1).

3. The insulating wale according to claim 2, wherein the telescopic adjusting structure comprises a plurality of first positioning holes (2b) formed in each mandrel (2) and penetrating through the outer side wall of the mandrel (2), the plurality of first positioning holes (2b) are arranged along the axial direction of the mandrel (2) at intervals, at least two second positioning holes (1a) capable of being communicated with the first positioning holes (2b) are formed in the steel pipe (1), the second positioning holes (1a) penetrate through the outer side wall of the steel pipe (1), and the telescopic adjusting structure further comprises positioning pins (4) penetrating through the first positioning holes (2b) and the second positioning holes (1 a).

4. The insulating wale according to claim 3, wherein two positioning holes II (1a) are formed in the steel pipe (1), the two positioning holes II (1a) are respectively located at two ends of the steel pipe (1), and each positioning hole II (1a) can be aligned and communicated with a positioning hole I (2b) which is closest to the limiting step surface (2a) on the mandrel (2) and corresponds to the end where the positioning hole II (1a) is located.

5. The insulating wale according to claim 4, wherein one end of the positioning pin (4) is provided with a leaning part (4b) leaning against the outer side wall of the steel pipe (1), the other end is provided with a plugging hole (4a), and a split pin (6) for preventing the positioning pin (4) from being separated from the positioning hole II (1a) is plugged in the plugging hole (4 a).

6. The insulating wale according to claim 4, wherein one end of the positioning pin (4) has an abutting portion (4b) abutting against the outer side wall of the steel pipe (1), and the other end is screwed with a nut (7) preventing the positioning pin (4) from falling out of the positioning hole II (1 a).

7. The insulating wale according to claim 1 or 2, wherein the telescopic adjusting structure comprises an internal thread provided on an inner wall of the steel pipe (1) and an external thread provided on an outer wall of the mandrel (2), and the mandrel (2) is in threaded connection with the steel pipe (1).